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Battery will be used after a period of time "aging", and specific performance is the internal resistance become larger, the voltage across the charging time increased quite rapidly, so it is easy to charge control circuit is judged to have full capacity will naturally is "down". As the larger battery internal resistance, discharge voltage drop, high speed, the system can easily mistaken for a voltage not enough, power is low (in fact there is not power up). As can be seen from the above description of the battery is a vicious cycle of aging process, the discovery of battery time out faster than what it should be tempered, otherwise sooner or later will be completed. In addition, many lithium battery failure is the failure of the bag resulting in a saving core, an assumed name or bad a pot of soup. This phenomenon is inevitable, because every energy-saving battery can not be completely consistent with the nature of the core, there are some quality with long aging first weakened, undermining the overall (in series) if the discharge curve. It simply means that section of bad batteries before charging full, discharge it first had finished, but this time the capacity of other batteries are not being fully utilized. Core of a saving over charge / over discharge will not cause the battery monitoring circuit that is full / End of release. For example, when charging other batteries began charging close to full pressure of time, that section of bad batteries may have to 4.30V or even higher voltage, resulting in overcharge damage, while others are fully satisfied. Editor's Note: The internal batteries for battery damage, the "China Computer Education," 2001 No. 2 has a great article - "laptop battery DIY" worth learning. Interest, courage and ability friends can try to open the battery pack, believe in the multimeter's help, you can quickly find the damaged batteries (abnormal voltage). If conditions allow, according to the corresponding parameters of batteries can replace the qualified product. Battery charge and discharge Lithium-ion battery charging, first by way of constant current fast charging, the voltage reaches a certain value and then to constant slow charge mode. Usually laptops are not strictly constant current charging control device. When the system load large charge current to a small, contrary to large, the current from the AC power adapter power margin decision. Clearly, the system will charge the battery and other components, such as CPU, hard drive, LCD and other competing energy sources. I tried to run side Superp, while charging the way and found that the charge current between the change in the 0.70 ~ 1.70A, can not meet the requirements of lithium-ion rechargeable battery, so I worry about this kind of work the battery charger will be damaged. IBM statement on the requirements of the notebook computer will not operate when charging is probably the reason. Laptop Battery ACER Laptop Battery APPLE Laptop Battery DELL Laptop BatteryHP Laptop Battery LG Laptop Battery LENOVO Laptop Battery IBM Laptop Battery SONY Laptop Battery TOSHIBA Laptop Battery
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